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A29v — Four Knights (1907)
1.c4 e5 2.Nc3 Nc6 3.Nf3 Nf6 4.g3 d5 5.cxd5 Nxd5 6.Bg2 Nb6 7.O-O Be7 8.a3
Les coups candidats
8…O-O — 78.1% (5807 parties)
Ambassadeurs : Zielinski, Sergej (77x), Portych, Václav (31x), Malinowski, Damian (29x), Coyne, David W. (27x), Gierth, Karlheinz (24x), Thiel, Kay (24x), Almarza Mato, Carlos (22x), Vecek, Marjan (21x)
8…Be6 — 10.0% (744 parties)
Ambassadeurs : Romanishin, Oleg M (17x), Zielinski, Sergej (6x), Popov, Vladimir Valentinovich (5x), Hjartarson, Johann (4x), Hector, Jonny (4x), Geenen, Marc (4x), Figueredo Company, Juan José (4x), Karpov, Anatoly (3x)
8…a5 — 8.7% (649 parties)
Ambassadeurs : Gagunashvili, Merab (3x), Istratescu, Andrei (3x), Kryger, Oksana (3x), Talla, Vladimir (3x), Vernay, Clovis (3x), Morihama, Nicolau (3x), Lehmann, Heinz (2x), Kavalek, Lubomir (2x)
8…g5 — 2.3% (169 parties)
Ambassadeurs : Simon, Holger (3x), Cvetkovic, Srdjan (2x), Fricot, Frederic (2x), Van den Heever, Donovan (2x), Overton, David J (2x), Ali Marandi, Cemil Can (2x), Bal, Enes Emre (2x), Jakobsen, Ole (1x)
Analyse statistique des coups candidats
Répartition par niveau Elo (% des parties)
Tranche Elo N parties 8…O-O 8…Be6 8…a5 8…g5
<1800 351 77% 11% 8% 3%
1800-2200 2998 78% 10% 9% 2%
2200-2600 3177 79% 9% 9% 2%
2600+ 203 81% 11% 5% 2%
Évolution par décennie (% des parties)
Décennie N parties 8…O-O 8…Be6 8…a5 8…g5
1950s 9 44% 22% 22%
1960s 36 22% 14% 50%
1970s 37 27% 22% 35%
1980s 217 59% 19% 18% 0%
1990s 758 72% 16% 9% 1%
2000s 1316 77% 10% 7% 4%
2010s 4131 81% 9% 7% 2%
2020s 929 81% 7% 11% 1%
Tendances récentes (2010s → 2020s)
Coup 2010s 2020s Δ
8…O-O 81% 81% -0.3%
8…Be6 9% 7% ▼ -2.1%
8…a5 7% 11% ▲ +3.8%
8…g5 2% 1% ▼ -1.2%
Joueurs célèbres
Champions du monde dans cette position
Kramnik, Vladimir — 9 parties
Carlsen, Magnus — 9 parties
Kasparov, Garry — 5 parties
Ding, Liren — 5 parties
Karpov, Anatoly — 4 parties
Botvinnik, Mikhail — 3 parties
Ju, Wenjun — 3 parties
Smyslov, Vladimir — 1 partie
Tal, Mikhail — 1 partie
Hou, Yifan — 1 partie
Anand, Viswanathan — 1 partie
Parties historiques
8…O-O — 78.1% (5807 parties)
1956 — Botvinnik, Mikhail vs Benkner, Otto — 1-0 — Moskou olm
1956 — Johannsson, Ingi R vs Limbos, Paul — 1/2-1/2 — Moskou olm
1957 — Roos, Michel vs Moindrot, M — 1/2-1/2 — France 22ch corr
1958 — Roos, Michel vs Blacher, Fernand — 1-0 — France 23ch corr
1962 — Petrosian, Tigran A. vs Skold, Kristian — 1-0 — Varna BUL
8…Be6 — 10.0% (744 parties)
1957 — Benko, Pal vs Bely, Miklos — 1/2-1/2 — HUN-ch Budapest HUN
1959 — Ragozin, Viacheslav vs Balogh, Janos — 1-0 — cr.
1962 — Botvinnik, Mikhail vs Lundin, Erik — 1-0 — Stockholm SWE
1964 — Andersen, Borge vs Jakobsen, Ole — 1-0 — Copenhagen DEN
1964 — Zietz, Leni vs Gudat, Alfons — 1-0 — D Mkl corr
8…a5 — 8.7% (649 parties)
1954 — Taimanov, Mark vs Kan, Ilya A — 1-0 — Leningrad RUS
1959 — Bobotsov, Milko G vs Heemsoth, Hermann — 1-0 — Hastings ENG
1960 — Schmid, Lothar vs Salo, Toivo — 1/2-1/2 — Stockholm SWE
1961 — Peterson, Andrejs vs Ludolph, Jaan — 1/2-1/2 — Palanga
1962 — Lagland, Goran M vs Hietanen, Pauli — 1-0 — Finland ch corr
8…g5 — 2.3% (169 parties)
1989 — Jakobsen, Ole vs Fries-Nielsen, Niels Jorgen — 0-1 — Aalborg DEN
1995 — Berend, Fred vs Quadrio, Alexandre — 1/2-1/2 — Linares zt
1996 — Sonnhalter, Walter vs Vetter, Gerhard — 1/2-1/2 — ?
1997 — Johansen, Darryl K vs Manca, Federico — 1-0 — Bolzano op Bolzano ITA
1998 — Petit, Eric-Thierry vs Bouton, Christophe — 0-1 — Clichy FRA